Chimney



- (Nc Model.)

W. RAAB. Chimney.

No. 242,044. Patented May 24,1881.

INVENTOR l/ //////W.///// d l 1 MW M 7% i l U- ATTORNEY` UNITED STATES PATENT OEEICE.

WILLIAM RAAB, OF CEDAR FALLS, IOWA.

CHIMNEY.

SPECIFICATION forming part of Letters Patent No. 242,044, dated May 24.-, 1881.

Application tiled November 13, 1380.

To all whom fit may concern:

Beit known that I, WILLIAM RAAB, of Cedar Falls, in the county of Black Hawk and State of Iowa, have invented a new and valuable Improvement in Chimneys; and I do hereby declare that Athe following is a full, clear, and exact description ot' the construction and operation ofthe same, reference being had to the annexed drawings, making a part ot' this specilication, and to the letters and figures ot' reference marked thereon.

Figure l of the drawings is a representation of a perspective of my device. Fig. 2 is a ver tical sectional view, and Fig. 3 is a transverse sectional View of the same.

This in vcntion relates to the construction ot' chimneys.

The invention consists in the devices hereinafter described.

In the annexed drawings, A represents a chimney made of any desired shape and in one or more than one piece secured tightly together. This chimney is constructed with three Iiues, B C D. The central flue, B, is the ordi nary smoke-tine, and reaches from an opening in the top ot' the chimney down to the furnacehole below. Next to this is the hot-air tine C, which commences at the bottom ot' the chimney and passes up the saine alongside the smoke-nue, being closed at the top and opening through registers E into the apartments. Outside of this ue C is a Ventilating-tine, D, having openings d at the top leading outside the building, and openings e at the bottom leading inside the building. y

The chimney is properly braced throughout its length by ribs a passing lengthwise the two outer lines.

F represents a seat for a range or small stove,

(No model.)

which is connected with a tube, H, which passes up through one side of hot-air due C and down the same, and by au elbow, b, enters smokeiue B at the bottom.

I is a chamber below for readily reaching the end o b of tube H. f

Fire being made in the furnace, the smoke passes up due B, andthe air in tlue C is heated, and passing through registers E heats the apartments. The air in due D, being warmed by the passage of hot air through ue C, rising induces a current from openings e to d, thereby Ventilating the building. When the wind blows against the side ot' the chimney it forces air down the flue D and drives fresh air into the building. By the use ot' this outside ventilating-iiue the chimney is kept from getting overheated.

When there is no lire in the furnace below one may be made in the range above, andthe products ot' combustion passing through tube H and out of flue B will produce the same result.

What I claim is- 1. A chimney having a central smoke-Hue, an outside Ventilating-line, and an intermediate hot-air tine, as set forth.

2. The tube H, passing through the hot-air due C, up and returned, having one end leadin g into the smoke-due and the other adapted to be fitted to a stove or range, as set forth.

In testimony that I claim the above I have hereunto subscribed my name in the presence ot' two witnesses.

WILLIAM RAAB.

Witnesses:

SYLvEsrER H. PACKARD, FRANCIS A. HoToHKIss. 

